The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 21, 2016
Filed:
Jun. 29, 2015
Daisaku Horikawa, Kanagawa, JP;
Nobuyuki Satoh, Kanagawa, JP;
Mamoru Yorimoto, Kanagawa, JP;
Kenji Morita, Tokyo, JP;
Masayuki Fujii, Kanagawa, JP;
Suguru Yokozawa, Kanagawa, JP;
Masahiro Hiranuma, Kanagawa, JP;
Yuichi Sakurada, Tokyo, JP;
Tomohiro Sasa, Kanagawa, JP;
Masaya Kawarada, Kanagawa, JP;
Daisaku Horikawa, Kanagawa, JP;
Nobuyuki Satoh, Kanagawa, JP;
Mamoru Yorimoto, Kanagawa, JP;
Kenji Morita, Tokyo, JP;
Masayuki Fujii, Kanagawa, JP;
Suguru Yokozawa, Kanagawa, JP;
Masahiro Hiranuma, Kanagawa, JP;
Yuichi Sakurada, Tokyo, JP;
Tomohiro Sasa, Kanagawa, JP;
Masaya Kawarada, Kanagawa, JP;
RICOH COMPANY, LTD., Tokyo, JP;
Abstract
A nozzle testing device includes: a two-dimensional image sensor to capture an image of a pattern formed on a recording object by discharging ink from a nozzle row while moving the nozzle row and the recording object relative to each other in a direction orthogonal to the nozzle row; a light source unit provided such that regularly reflected light by the pattern forms a regular reflection area in the image of the pattern captured by the two-dimensional image sensor; and a detection unit to analyze the image to detect discharge failure of the nozzles. The regular reflection area is formed in the image such that a dimension in a direction corresponding to the direction of relative movement between the nozzle row and the recording object is greater than a dimension in a direction orthogonal to the direction corresponding to the direction of relative movement in the image.